Overview: Tragedy strikes when five-year-old Oliver goes missing on a family holiday to France.
Overview: Tony's investigation gathers momentum as he finds the first bit of concrete evidence.
Overview: Progress into the case is initially slow but a shocking new lead emerges.
Overview: The stress of the reopening of the case takes a toll on Emily and Mark's relationship.
Overview: In 2006, Tony and Emily's pleas to reinvestigate a suspect again fall on deaf ears.
Overview: In the present day, Tony and Julien make a breakthrough.
Overview: Tony and Emily return to Chalons du Bois and their relationship thaws.
Overview: The truth about Oliver's disappearance finally comes to light.